On 11/4/2019 1:24 PM, Rick Bates (WA6NHC) wrote: > Perhaps since that is the standard voltage for cars, trucks, RVs and other > vehicles.
Commercial communication base-station equipment has been standardized at -48 volts(*) for quite a while and actually needs to use a voltage converter for the odd-ball +12 V or 120V AC equipment that has to be run. (*) -48 volts has been the telephone industry standard since Ma Bell was a teen-ager! 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
